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Finding the Fourth Proportional to 276,696.40, 415,044.60 and 251,764.60

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Solution

The fourth proportional to 276,696.40, 415,044.60 and 251,764.60 is: 377,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,696.40 : 415,044.60 = 251,764.60 : x
  2. Step 2: Convert to fraction form
    276,696.40/415,044.60 = 251,764.60/x
  3. Step 3: Cross multiply
    276,696.40x = 415,044.60 × 251,764.60
  4. Step 4: Simplify right side
    276,696.40x = 104,493,537,701.16
  5. Step 5: Solve for x
    x = 104,493,537,701.16/276,696.40
  6. Step 6: Final answer
    x = 377,646.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.